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Your Position: Home > All Other Proteins > PCSK9 > PCY-H82E7

Biotinylated Human PCSK9 (D374Y) Protein, Avitag™,His Tag

Based on the high binding affinity between biotin-streptavidin systems, our best seller SP-11 Streptavidin Coated Plates are recommended to use together with biotinylated proteins to get lower non-specific binding results in a shorter time.
  • Synonym
    PCSK9,FH3,HCHOLA3,LDLCQ1,NARC1,PC9
  • Source
    MABSol® Biotinylated Human PCSK9 (D374Y), Avitag,His Tag (PCY-H82E7) is expressed from human HEK293 cells. It contains AA Gln 31 - Gln 692 (Accession # Q8NBP7-1(D374Y)).
    Predicted N-terminus: Gln 31
  • Molecular Characterization
    Online(Gln 31 - Gln 692) Q8NBP7-1 (D374Y)

    This protein carries an Avi tag (Avitag™) at the C-terminus, followed by a polyhistidine tag. This protein undergoes autocatalytic cleavage to release the pro-peptide and mature chain. The pro-peptide and mature chain are associated through non‑covalent interactions and with a calculated MW of 13.8 kDa and 59.9 kDa respectively. The protein migrates as 17 kDa and 60-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation. The D374Y mutation results in higher affinity of PCSK9 for LDLR.

  • Biotinylation
    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Biotin:Protein Ratio
    Passed as determined by the HABA assay / binding ELISA.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Biotinylated Human PCSK9 (D374Y), Avitag,His Tag (Cat. No. PCY-H82E7) SDS-PAGE gel

Biotinylated Human PCSK9 (D374Y), Avitag,His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Bioactivity-ELISA
Biotinylated Human PCSK9 (D374Y), Avitag,His TagBiotinylated Human PCSK9 (D374Y), Avitag,His Tag (Cat. No. PCY-H82E7) ELISA bioactivity

Immobilized Human LDL R, His Tag (Cat. No. LDR-H5224) at 2 μg/mL (100 μL/well) can bind Biotinylated Human PCSK9 (D374Y), Avitag,His Tag (Cat. No. PCY-H82E7) with a linear range of 0.2-8 ng/mL (QC tested).

  • Background
    Proprotein convertase subtilisin/kexin type 9 (PCSK9) is also known as NARC1 (neural apoptosis regulated convertase), is a newly identified subtilase belonging to the peptidase S8 subfamily. Mouse PCSK9 is synthesized as a soluble zymogen, and undergoes autocatalytic intramolecular processing in the endoplasmic reticulum, resulting in the cleavage of its propeptide that remains associated with the secreted active enzyme with a broad alkaline pH optimum. This protein plays a major regulatory role in cholesterol homeostasis. PCSK9 binds to the epidermal growth factor-like repeat A (EGF-A) domain of the low-density lipoprotein receptor (LDLR), inducing LDLR degradation. PCSK9 may also have a role in the differentiation of cortical neurons. Mutations in this gene have been associated with a rare form of autosomal dominant familial hypercholesterolemia (HCHOLA3).
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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